• Journal of the Korean Society of Manufacturing Technology Engineers
• /
• v.8 no.5
• /
• pp.54-62
• /
• 1999

This paper describes the design and implementation of a PC(personal computer) based open architecture machine tool controller. The hardware of open architecture CNC has generally a motion control board on a PC for controlling a servo motor. But this paper describes open architecture hardware that consists of a PC, a counter board a DAC board and a DIO board only. This makes it easy to generate CNC software module in a hardware-independent way. The proposed open architecture CNC software runs on the MS-Windows NT. The paper describes a method of con-trolling servo motors using a real-time timer of MS-Windows NT and a commercial real-time operating system on the MS-Windows. NT. An open and reconfigurable software module is made up of an object and an API(application programming interface). Using the object and the API a new CNC system can be quickly configured to control dif-ferent machine tools. The proposed open architecture CNC system is applied to 4-axis lettering center.

• Agribusiness and Information Management
• /
• v.1 no.1
• /
• pp.87-106
• /
• 2009

Web2.0 refers to a new service models based by a community oriented philosophy. This creates new opportunities for technology providers and service. The agricultural technology information service in the base of open source technology provide opportunities for increased distribution and visibility to farmer and general user. We would like to find out vest service models and platform that will find new ways of agriculture technology information service. This study suggests that these new agriculture information service strategy in new paradigm of web 2.0. should be revised and adapted to Open API and new applied strategy in agriculture should be developed considering the impact of web 2.0.

• Proceedings of the Korean Society for Emotion and Sensibility Conference
• /
• 2002.05a
• /
• pp.95-100
• /
• 2002

감성정보관리시스템은 주거ㆍ사무환경에 속한 6개 분야의 연구과제에서 생성된 피험자의 생리신호와 주관적 감성평가 데이터를 통합 관리하는 시스템이다. 본 논문에서는 여러 형태의 감성평가 실험데이터를 데이터베이스에 저장ㆍ처리하기 위해 감성정보 데이터베이스에 대한 접근을 하나의 컴포넌트에 집중시킨 데이터베이스 레퍼(wrapper)를 설계하였다. 이 접근방법은 감성정보 데이터베이스에 대한 단순화된 응용 프로그래밍 인터페이스(API: application programming interface)를 제공함으로써 접근코드를 단순화하여 코딩의 생산성을 높이고, 데이터베이스 접근을 일관성 있게 유지함으로써 프로그램의 오류발생 가능성을 감소 시켰다. 또한 데이터베이스 접근을 캡슐화함으로써 내부 논리의 변경이나 소프트웨어 버전 향상으로 JDBC API가 변경되더라도 영향을 최소화할 수 있을 것이다.

• Proceedings of the Korean Information Science Society Conference
• /
• 2002.04b
• /
• pp.439-441
• /
• 2002

내장명 실시간 시스템을 위한 프로그래밍의 방법으로. 플랫폼에 의존적이며 실시간성이 고려되어야 하는 태스크는 실시간 쓰레드를 이용하고, GUI나 인터넷통신과 같은 실시간성이 고려되지 않는 태스크는 자바 쓰레드를 이용해서 프로그래밍하는 것이 편리하다. 이런 경우, 서로 다른 이들 쓰레드간에 동기화를 위한 방법이 필요하게 된다. 따라서, 본 논문에서는 실시간 쓰레드와 자바 쓰레드간의 동기화를 위만 방법을 제시하고 이를 위한 API(Application Programming Interface)를 설계 및 구현한다 즉, 실시간 운영체제인 RT-Linux상에서 수행되는 실시간 쓰레드들이 RT-FIFO와 네이티브 IPC(Inter-process communication) 메커니즘을 사용해 자바 쓰레드들과 동기화 되어질 수 있게 구현한 것이다. 구현된 이 네이티브 IPC API들은 재사용 가능한 공유 라이브러리와 클래스파일로 제작되어 활용될 수도 있다.

• Journal of the Korea Society of Computer and Information
• /
• v.10 no.6 s.38
• /
• pp.219-226
• /
• 2005

This paper describes the open API with integration of semantic web service with PARLAY X based open API in 4G mobile network. It can be expected that the intelligence such as the context-awareness, adaptation and personalization in 4G mobile network will be deployed. But the existing PARLAY based network lacks in considering context-awareness, adaptation and personalization. Therefore, the object of this paper is to support the architecture and the Application Programming Interface (API) of the network service for the context-awareness, adaptation and Personalization in 4G mobile network The open API is to provide users with the adaptive network service to the changing context constraints as well as detecting the changing context and user's Preference. For instance, the open API can Provide users with QoS in network according to the detected context and user's preference, after detecting the context such as location and speed and user's preference.

• Journal of the Korea Institute of Building Construction
• /
• v.22 no.4
• /
• pp.379-390
• /
• 2022

While the construction industry is striving to make changes suitable for the 4th industrial revolution era through the introduction of 4th industrial revolution technologies, such change is progressing more slowly than in other industries. Nevertheless, the recent digitization and digital transformation of the construction industry can provide a new paradigm to address and innovate the chronic problems faced by the construction industry. Therefore, in this study, a case study using a data hub and API for use of the data hub, which is essential for digitalization and digital transformation, was conducted, and the efficiency and feasibility of using the data hub and API were considered. When the API system was introduced, it was found that the average budget savings per person was about 23%, and the costbenefit ratio was about 4.4 times higher, indicating that the feasibility of the project was very high. The results and framework of this study can serve as fundamental research data for related research, and provide a worthy case study to promote the introduction of related technologies. This will ultimately contribute to digitalization and digital transformation for smartization of the construction industry.

• The Transactions of the Korean Institute of Electrical Engineers P
• /
• v.64 no.4
• /
• pp.267-272
• /
• 2015

Active noise control (ANC) is a method of cancelling a noise signal in an acoustic cavity by generating an appropriate anti-noise signal via canceling loudspeakers. The continuous progress of ANC involves the development of improved adaptive signal processing algorithms, transducers, and DSP hardware. In this paper, the convergence behavior and the stability of the FxLMS algorithm in ANC systems with real-time implementation is proposed. Specially, The advanced DSP H/W with dual core(DSP+ARM) and API(application programming interface) S/W programming was developed to improve the real-time implementation performance under the FxLMS algorithms of input noise such as road noise environment. The experimental results are found to be in good agreement with the theoretical predictions.

• Proceedings of the Korean Society of Computer Information Conference
• /
• 2023.07a
• /
• pp.251-253
• /
• 2023

본 연구는 spring framework와 각 SNS들의 API를 활용한 각 플랫폼들을 한 사이트에 연동하여 사용자들이 손쉽게 관리하기 위하여 진행하였다. SNS 통합 플랫폼에서의 중요한 요소는 사용자들의 SNS 관리 시간을 단축시키는 것인데 이를 위해 플랫폼들의 게시물들을 한 곳에서 게시, 수정, 삭제 그리고 여러 플랫폼에 게시물을 동시에 업로드하는 기능과 게시물들을 필터링하는 기능을 제공하였다. 이를 통해 사용자의 편의성은 올라가며 더 효율적으로 게시물들을 관리하여 시간을 단축시킬 수 있다.

• Journal of the Korea Institute of Information Security & Cryptology
• /
• v.27 no.5
• /
• pp.1087-1097
• /
• 2017

As the penetration rate of smartphones increases, the number of malicious codes targeting smartphones is increasing. I 360 Security 's smartphone malware statistics show that malicious code increased 437 percent in the first quarter of 2016 compared to the fourth quarter of 2015. In particular, malicious applications, which are the main means of distributing malicious code on smartphones, are aimed at leakage of user information, data destruction, and money withdrawal. Often, it is operated by an API, which is an interface that allows you to control the functions provided by the operating system or programming language. In this paper, we propose a mechanism to detect malicious application based on the similarity of API pattern in normal application and malicious application by learning pattern of API in application derived from static analysis. In addition, we show a technique for improving the detection rate and detection rate for each label derived by using the corresponding mechanism for the sample data. In particular, in the case of the proposed mechanism, it is possible to detect when the API pattern of the new malicious application is similar to the previously learned patterns at a certain level. Future researches of various features of the application and applying them to this mechanism are expected to be able to detect new malicious applications of anti-malware system.

• The KIPS Transactions:PartC
• /
• v.12C no.3 s.99
• /
• pp.457-464
• /
• 2005

This paper describes an Adaptive Context-aware Service (ACS) using Model Driven Architecture (MDA)-based Service Creation Environment (SCE) on PARLAY X based service delivery platform in ubiquitous computing environments. It can be expected that both the context-awareness and adaptation in ubiquitous computing environments will be deployed. But the existing context-aware middleware lacks in considering adaptation. Therefore, the object of this paper is to support the architecture and the Application Programming Interface (API) of the network service for both the context-awareness and adaptation in ubiquitous computing environment. ACS is to provide users with the adaptive network service to the changing context constraints as well as detecting the changing context. For instance, ACS can provide users with QoS in network according to the detected context, after detecting the context such as location and speed. The architecture of ACS is comprised of a Service Creation Environment (SCE), Adaptive Context Broker and PARLAY gateway. SCE is to use Context-based Constraint Language (CCL) for an expression of context-awareness and adaptation. Adaptive Context Broker is to make a role of the broker between SCE and PARLAY G/W. PARLAY G/W is to support API for PARLAY X-based service delivery platform.